Modify default LWRP/Lit to support Roughness map

Unity Engine
1

Hi
One shortcoming I’ve noticed in the default LWRP Lit shader is that it doesn’t seem to have support for a Roughness texture map.

Any shader gurus able to suggest how I might modify Lit to support a Roughness map?

2

Can’t you do it using ShaderGraph ? Seems like the perfect use case to me.

3

I’m confused, the Lit shader uses the same texture layout as the built in rendering paths’ Standard shader with smoothness (1-roughness) in the alpha of the metallic, specular, or albedo texture depending on the settings you’ve selected.

4

Yes thanks. Also can use the LWRP Autodesk shader.
One exception though with using Shadergraph is if you need to modify the shader in some way not possible with ShaderGraph alone, as in my case adding Stencil effect for a AR Portal application :frowning: